文档介绍：Preface to the Series
Following Springer’s essful series Catalysis – Science and Technology,this
series of monographs has been entitled Molecular Sieves – Science and Techno-
logy. It will cover, in prehensive manner, all aspects of the science and
application of zeolites and related microporous and mesoporous materials.
After about 50 years of prosperous research, molecular sieves have gained a
firm and important position in modern materials science,and we are witnessing
an ever increasing number of industrial applications. In addition to the more
traditional and still prevailing applications of zeolites as water softeners in
laundry detergents, as adsorbents for drying, purification and separation pur-
poses, and as catalysts in the petroleum refining, petrochemical and chemical
industries, novel uses of molecular sieves are being sought in numerous labo-
ratories.
By the beginning of 1999, the mission of the International
Zeolite Association had approved approximately 120 different zeolite structures
which, altogether, cover the span of pore diameters from about nm to 2 nm.
The dimensions of virtually all molecules (except macromolecules) chemists are
concerned with fall into this same range. It is this coincidence of molecular
dimensions and pore widths which makes zeolites so unique in adsorption and
catalysis and enables molecular sieving and shape-selective catalysis. Bearing in
mind that each zeolite structure can be modified by a plethora of post-synthesis
techniques, an almost infinite variety of molecular sieve materials are nowadays
at the researcher’s and engineer’s disposal. In many instances this will allow the
properties of a zeolite to be tailored to a desired application. Likewise, remark-
able progress has been made in the characterization of molecular sieve mater-
ials by spectroscopic and other physico-chemical techniques, and this is par-
ticularly true for structure determination. During the last decade, we hav